I bought a vintage Adams Retouching Machine for next to nothing some time ago. It works fine and is built like a tank. Does anyone know where I could get instructions on how to actually use it and is anyone using one now? The company in Colorado seems to have gone out of business even though I've seen some very high-tech versions of the machine here and there. The one I have has a light inside, magnifying glass, leather negative platform/holder that vibrates at various speeds.